The first time he sat so close to her, her heartbeat was in chaos; the first time he spoke to her, she didn't even know where to look; the first time he agreed to her request, she was so happy that she flew into the air. Perhaps Xu Yanxu is a friend in Song Chengzhi's eyes? Classmate? Maybe it's someone you won't keep in touch with after graduation. But one day, a message appeared in the empty chat box with Song Chengzhi...
Concept: Unspoken secret love